Crystal looked to where the snarling girl was walking and saw the captive girl tapping on the glass. After a quick mental assessment, she decided that there was no way for Crystal to break the glass, not without her red hot fear activating her power. She looked to the others for help. 

"Uh, guys? Anyone want to break her out? Preferably somebody NOT on fire?" She added, surveying the boys. 

The air around Crystal was so cold that it standing within a few feet of her was comparable to a midwinter day. Crystal seemed unaware of this fact, though, and remained unaffected by the cold.